Engineering formwork tie bar fixing device
By introducing PVC sleeves and fastening components into the template stretching, the problem of difficult removal of the template stretching is solved, and the reuse of the stretching is realized and engineering costs are reduced.
Patent Information
- Application Number
- CN202421881744.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-06
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-08-06
AI Technical Summary
In the prior art, the formwork stretching is difficult to remove after concrete solidification, resulting in unrepeatable and increasing costs.
The design of PVC sleeve and fastening assembly is adopted. Through the cooperation of threaded parts, clamping parts and fastening components, the tensioning ribs can be removable and fixed, and the friction is enhanced by using the double nut fastening method to ensure firmness and not looseness.
Reuse of tensioning is realized, cost expenditure is reduced, and the stability and removability of the template fixing device are improved.
Smart Images
Figure CN223075173U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of engineering formwork tie bars, in particular to a fixing device for engineering formwork tie bars. Background Technique
[0002] When pouring a concrete wall, formwork support needs to be carried out on the outside of the structural column steel bars. In order to ensure the stability of the formwork, tie bars are used for reinforcement during construction. After retrieval, in the patent document with the publication number of CN214658859U, a new type of formwork tie bar is disclosed. In this utility model, the connecting rod and the formwork can be reused, saving costs and reducing unnecessary waste. However, there are still some deficiencies in the above scheme. Since the tie bars will be fixed in the concrete after the concrete between the formworks solidifies and takes shape, it is not easy to remove them, resulting in the inability to reuse the tie bars and increasing the cost expenditure. Therefore, it is necessary to propose a fixing device for engineering formwork tie bars. Content of the Utility Model
[0003] The purpose of the utility model is to provide a fixing device for engineering formwork tie bars to solve the problems put forward in the above background technique.
[0004] To achieve the above purpose, the utility model provides the following technical scheme: A fixing device for engineering formwork tie bars, including two engineering formworks, the two engineering formworks are respectively located on both sides of the structural column steel bars, a PVC sleeve is penetrated between the two engineering formworks, a tie bar is inserted inside the PVC sleeve, both ends of the tie bar are provided with threaded parts, and the threaded parts extend out of the inside of the PVC sleeve. A wooden square is arranged on the outside of the engineering formwork. Secondary ribs that are attached to the wooden square are arranged on both sides of the threaded part. A clamping member is sleeved on the outer wall of the threaded part, and a fastening assembly is arranged between the clamping member and the threaded part.
[0005] Preferably, the fastening assembly includes a gasket, the gasket is sleeved on the outer wall of the threaded part, the gasket is located outside the clamping member, an inner nut sleeved on the outer wall of the threaded part is arranged on the outside of the gasket, and an outer nut sleeved on the outer wall of the threaded part is arranged on the outside of the inner nut.
[0006] Preferably, both the outer nut and the inner nut are threadedly connected to the threaded part, and the thickness of the outer nut is greater than the thickness of the inner nut.
[0007] Preferably, the secondary rib is made of metal steel pipe material.
[0008] Preferably, two card slots adapted to the secondary ribs are opened on the inner side of the clamping member.
[0009] Preferably, the wooden squares are arranged at equal intervals on the outside of the engineering formwork.
[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0011] 1. In the present utility model, a fastening assembly is provided. Through the combined use of a gasket, an inner nut, and an outer nut, a double-nut fastening method is formed. That is, the deformation between the two nuts will generate a certain force, enhancing the friction between the threads and ensuring that the fastening assembly is firm and does not loosen.
[0012] 2. In the present utility model, by sleeving a PVC sleeve on the outside of the tension bar, after the concrete poured between two engineering templates solidifies and forms, by sequentially removing the fastening assembly and the clamping member from the threaded portion, the tension bar can be removed from the PVC sleeve, thus realizing the reuse of the tension bar and further reducing the cost expenditure. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 is a schematic structural diagram of the present utility model;
[0014] Figure 2 is a schematic structural diagram of the tension bar of the present utility model;
[0015] Figure 3 is Figure 1 an enlarged structural diagram of part A in
[0016] In the figure: 1, engineering template; 2, PVC sleeve; 3, tension bar; 4, threaded portion; 5, wooden square; 6, secondary joist; 7, clamping member; 8, fastening assembly; 81, gasket; 82, inner nut; 83, outer nut. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0017] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.
[0018] Just as mentioned in the background art, in view of the problem in the prior art that after the concrete between the templates solidifies and forms, the tension bar will be fixed in the concrete and is not easy to be removed, resulting in the inability to reuse the tension bar and increasing the cost expenditure, the present utility model proposes an engineering template tension bar fixing device. Embodiment
[0019] Please refer to Figure 1 and Figure 2, An engineering formwork tie bar fixing device, comprising two engineering formworks 1, which are respectively located on both sides of the structural column steel bars. A PVC sleeve 2 penetrates between the two engineering formworks 1. A tie bar 3 is inserted inside the PVC sleeve 2. Threaded portions 4 are provided at both ends of the tie bar 3, and the threaded portions 4 extend out of the inside of the PVC sleeve 2. A wooden square 5 is provided on the outer side of the engineering formwork 1, and the wooden squares are equidistantly arranged on the outer side of the engineering formwork 1. Secondary ribs 6 that fit the wooden square 5 are provided on both sides of the threaded portion 4. A clamping member 7 is sleeved on the outer wall of the threaded portion 4. Two slots adapted to the secondary ribs 6 are provided inside the clamping member 7. A fastening assembly 8 is provided between the clamping member 7 and the threaded portion 4. By placing the two engineering formworks 1 on both sides of the structural column steel bars respectively, inserting the PVC sleeve 2 into the hole reserved between the two engineering formworks 1, inserting the tie bar 3 into the PVC sleeve 2, then placing the secondary ribs 6 on both sides of the end of the tie bar 3, and successively sleeving the clamping member 7 and the fastening assembly 8 on the threaded portion 4, and clamping the clamping member 7 to the secondary ribs 6 through the fastening assembly 8, the fixing of the tie bar 3 is realized, so that the two engineering formworks 1 can be well reinforced. After the concrete poured between the two engineering formworks 1 solidifies and forms, by successively removing the fastening assembly 8 and the clamping member 7 from the threaded portion 4, the tie bar 3 can be removed from the PVC sleeve 2, and the reuse of the tie bar 3 can be realized, thereby reducing the cost expenditure.
[0020] In this embodiment, please refer to Figure 1 , the secondary rib 6 is made of metal steel pipe material, so that the secondary rib 6 has high strength and is not easily deformed due to extrusion. Embodiment
[0021] Please refer to Figure 1 and Figure 3 , what is different about this embodiment from the first embodiment is that the fastening assembly 8 includes a gasket 81, the gasket 81 is sleeved on the outer wall of the threaded portion 4, the gasket 81 is located outside the clamping member 7, an inner nut 82 sleeved on the outer wall of the threaded portion 4 is provided on the outer side of the gasket 81, and an outer nut 83 sleeved on the outer wall of the threaded portion 4 is provided on the outer side of the inner nut 82. Both the outer nut 83 and the inner nut 82 are threadedly connected to the threaded portion 4, and the thickness of the outer nut 83 is greater than the thickness of the inner nut 82. By the combined use of the gasket 81, the inner nut 82 and the outer nut 83, a double-nut fastening method is formed, that is, the deformation between the two nuts will generate a certain force, enhancing the friction between the threads and ensuring that the fastening assembly 8 is firm and does not loosen.
[0022] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. An engineering formwork tie bar fixing device, comprising two engineering formworks (1), characterized in that: The two engineering templates (1) are respectively located on both sides of the structural column steel bars. A PVC sleeve (2) penetrates between the two engineering templates (1). A tension bar (3) is inserted inside the PVC sleeve (2). Threaded portions (4) are provided at both ends of the tension bar (3), and the threaded portions (4) extend out of the inside of the PVC sleeve (2). A wooden square (5) is arranged on the outer side of the engineering template (1). Secondary ribs (6) that are in contact with the wooden square (5) are provided on both sides of the threaded portion (4). A clamping member (7) is sleeved on the outer wall of the threaded portion (4). A fastening assembly (8) is arranged between the clamping member (7) and the threaded portion (4). The fastening assembly (8) includes a gasket (81). The gasket (81) is sleeved on the outer wall of the threaded portion (4), and the gasket (81) is located outside the clamping member (7).
2. The engineering template tension bar fixing device according to claim 1, characterized in that: An inner nut (82) sleeved on the outer wall of the threaded portion (4) is arranged outside the gasket (81). An outer nut (83) sleeved on the outer wall of the threaded portion (4) is arranged outside the inner nut (82).
3. The engineering formwork tie bar fixing device according to claim 2, characterized in that: Both the outer nut (83) and the inner nut (82) are threadedly connected to the threaded portion (4), and the thickness of the outer nut (83) is greater than the thickness of the inner nut (82).
4. The engineering template tie bar fixing device according to claim 1, characterized in that: The secondary rib (6) is made of metal steel pipe material.
5. The engineering template tie bar fixing device according to claim 1, characterized in that: Two slots adapted to the secondary rib (6) are formed on the inner side of the clamping member (7).
6. The engineering template tension bar fixing device according to claim 1, characterized in that: The wooden squares are arranged at equal intervals on the outer side of the engineering template (1).